Peter Zeihan: The War With Iran Could Reshape the Global Economy | Prof G Conversations

Iran's new supreme leader is the son of the assassinated Ayatollah Khamenei — and he is nothing like his father. Zeihan describes him as «what Don Jr. wishes he was»: a leader with both financial acumen and frontline military experience. Unlike his father, who maintained Iran's deterrent posture one step short of a nuclear weapon, the new leader has no political capital, no decades of clerical authority, and no reason to believe restraint will protect Iran. The old strategy — keeping a credible enrichment program that could be weaponized within weeks to months — was already under debate after Israel's June attacks. Now, with the supreme leader dead and a wide-ranging U.S. air campaign underway, Iran's calculus has shifted decisively toward acquiring a deliverable nuclear weapon within a year. Even if the U.S. declares victory tomorrow, Zeihan warns, the damage is done: Iran will pursue the bomb, and the strategic balance of the region has been permanently altered.

The world is facing a convergence of energy supply shocks unprecedented in modern history. First, the Persian Gulf — normally 20 million barrels per day, half of all internationally traded oil — is functionally offline. Second, European nations have accelerated seizures of Russian shadow fleet tankers over the past two months, threatening 4 million barrels per day of Russian exports. Sweden, Belgium, and France have each taken ships; the U.S. has targeted Venezuela's shadow fleet; India has seized Iranian tankers. Third, under the 2015 omnibus bill, the U.S. president retains unilateral authority to shut off all American oil exports with no congressional review. If all three supply sources vanish simultaneously — Persian Gulf blockade, Russian shadow fleet crackdown, and U.S. export ban — the result would be a «society-ending event» for many countries, Zeihan warns, though not for the United States. East Asia, particularly China, would collapse first. Europe would face impossible choices between national security and environmental goals, likely reverting to lignite coal. The global manufacturing base that underpins the modern economy would simply cease to function.

The United States is energy independent, has strong internal consumption, and remains the safest destination for global capital — but it has one critical vulnerability. «From an economic point of view, the only real weakness the United States has is in manufacturing,» Zeihan explains, «whether it's the primary processing of raw commodities like cobalt or lithium, or cars or jets and everything in between.» Biden began addressing this gap, but Trump's tariff chaos — 6,000 tariff changes in a single year — froze new investment. Businesses finished projects already underway but stopped starting new ones. Now the U.S. must double the size of its industrial plant in an environment of extreme regulatory uncertainty, expensive capital, and a collapsed immigration pipeline for labor. Globalization was always going to fail, Zeihan argues, due to demographics and the end of the Cold War security bargain. Trump is simply compressing the timeline. «We were always going to get to some version of where we are now,» he says. The question is whether America can build fast enough to avoid being «sucker punched» by shortages of everything needed to industrialize.